#[cfg(test)]
mod test {

    #[test]
    fn main() {
        let x= 5;
        match x {
            1 => println!("匹配到1"),
            2..5 => print!("匹配2到5"),
            _ => println!("匹配到其他值"),
        }
        let point = (3,5,8);
        let (a,b,c) = point;
        println!("解构后的值：{}和{}和{}",a,b,c)
    }
}
